I don't think the problem is with quotas that mean male candidates miss out on flying jobs.
I think a real issue coming up is an acknowledgement that currently too many women write off becoming pilots, and we are missing out on almost 50% of the population and almost 50% of the available talent pool in recruitment. Which I think could come back to bite airlines in the future.
And it's not just female pilots being positively portrayed in the media etc, I've spoken with many people who still think aviation is a profession that can only be performed by physically strong, emotionless, adrenaline-seeking Type A personalities (qualities seen as more "macho" than feminine) and any woman who pursues aviation is sort of a "tomboy". Of course in reality that's definitely not the case but those perceptions do exist in the wider community.